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<!--
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Test clear and clearBuffer functions have to match fbo's buffer format</title>
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<canvas id="canvas" width="20" height="20"> </canvas>
<script>
"use strict";
description("This tests the WebGL2 specific constraint that clear or clearBuffer* functions have to be compatible with fbo's buffer format");
var setupRenderbuffer = function(attachment, format) {
var renderbuffer = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, attachment, gl.RENDERBUFFER, renderbuffer);
gl.renderbufferStorage(gl.RENDERBUFFER, format, canvas.width, canvas.height);
return renderbuffer;
}
var wtu = WebGLTestUtils;
var canvas = document.getElementById("canvas");
var gl = wtu.create3DContext(canvas, undefined, 2);
if (!gl) {
testFailed("context does not exist");
} else {
testPassed("context exists");
var fb = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
debug("");
debug("Signed integer buffer");
var colorbuffer = setupRenderbuffer(gl.COLOR_ATTACHMENT0, gl.RGBA8);
var colorbuffer1 = setupRenderbuffer(gl.COLOR_ATTACHMENT1, gl.RGBA32I);
gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]);
shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE');
gl.clear(gl.COLOR_BUFFER_BIT);
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clear and INT buffer");
gl.clearBufferfv(gl.COLOR, 1, new Float32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferfv and INT buffer");
gl.clearBufferuiv(gl.COLOR, 1, new Uint32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferuiv and INT buffer");
debug("Set up draw buffer so INT buffer is set to NONE");
gl.drawBuffers([gl.COLOR_ATTACHMENT0]);
gl.clear(gl.COLOR_BUFFER_BIT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clear and INT buffer is NONE");
gl.clearBufferfv(gl.COLOR, 1, new Float32Array(4));
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clearBufferfv and INT buffer is NONE");
gl.clearBufferuiv(gl.COLOR, 0, new Uint32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferuiv and float buffer");
debug("");
debug("Unsigned integer buffer");
colorbuffer = setupRenderbuffer(gl.COLOR_ATTACHMENT0, gl.RGBA32UI);
colorbuffer1 = setupRenderbuffer(gl.COLOR_ATTACHMENT1, gl.RGBA8);
gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]);
shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE');
gl.clear(gl.COLOR_BUFFER_BIT);
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clear and UINT buffer");
gl.clearBufferfv(gl.COLOR, 0, new Float32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferfv and UINT buffer");
gl.clearBufferiv(gl.COLOR, 0, new Int32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferiv and UINT buffer");
debug("Set up draw buffer so INT buffer is set to NONE");
gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]);
gl.clear(gl.COLOR_BUFFER_BIT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clear and UINT buffer is NONE");
gl.clearBufferfv(gl.COLOR, 0, new Float32Array(4));
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clearBufferfv and UINT buffer is NONE");
gl.clearBufferiv(gl.COLOR, 1, new Int32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferiv and float buffer");
debug("");
debug("Float buffer");
colorbuffer = setupRenderbuffer(gl.COLOR_ATTACHMENT0, gl.RGBA8);
var numAttachments = 1;
var ext = gl.getExtension("EXT_color_buffer_float");
var bufferType = "float buffer";
if (ext) {
debug("EXT_color_buffer_float is available: testing RGBA8 + RGBA32F");
colorbuffer1 = setupRenderbuffer(gl.COLOR_ATTACHMENT1, gl.RGBA32F);
++numAttachments;
gl.drawBuffers([gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]);
} else {
debug("EXT_color_buffer_float is unavailable: testing RGBA8");
gl.drawBuffers([gl.COLOR_ATTACHMENT0]);
bufferType = "RGBA8 buffer";
}
shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE');
gl.clear(gl.COLOR_BUFFER_BIT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clear and " + bufferType);
for (var ii = 0; ii < numAttachments; ++ii) {
gl.clearBufferfv(gl.COLOR, ii, new Float32Array(4));
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "clearBufferfv and " + bufferType);
gl.clearBufferiv(gl.COLOR, ii, new Int32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferiv and " + bufferType);
gl.clearBufferuiv(gl.COLOR, ii, new Uint32Array(4));
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "clearBufferuiv and " + bufferType);
}
gl.deleteFramebuffer(fb);
gl.deleteRenderbuffer(colorbuffer);
gl.deleteRenderbuffer(colorbuffer1);
}
debug("");
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no error");
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>
|
